REINFORCEMENT CAGE Russian patent published in 2012 - IPC E04C5/65 

FIELD: construction.

SUBSTANCE: invention relates to reinforcement cages to reinforce centrally compressed reinforced concrete elements, and may also be used for reinforcement of reinforced concrete pipes. In a reinforcement frame the transverse reinforcement is arranged in the form of rings of a wavy shape with pockets of curvilinear shape, and longitudinal reinforcement is arranged in the form of rods twisted with identical pitch along a helical line of diameters of ledges of curvilinear-shaped pockets of the transverse reinforcement, at the same time helical rods of the longitudinal reinforcement are fixed to rings of the transverse reinforcement at the inner side of its curvilinear-shaped pockets.

EFFECT: simplified design, higher stability to transverse and longitudinal external forces.

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